Waste flow control



NOV. 20, 1951 E, w N, BQQSEY 2,575,905

WASTE FLOW CONTROL Filed Sept. 20; 1949 INVENTOR.

EMMY, (ll/K ansqf flrronusy Patented Nov. 20, 1951 UNITED STATES PATENTOFFICE WASTE FLOW CONTROL Edward W. N. Boosey, Detroit, Mich.

Application September 20, 1949, Serial No. 116,803

2 Claims.

This invention relates to a waste flow control the object being toprovide a control of flow of refuse liquid in gallons per minute from acontainer to an outlet conduit.

These and other objects and features of the invention are hereinaftermore fully described and claimed and a waste flow control embodying myinvention is shown in the accompanying drawing in which Fig. 1 is anelevation showing the apparatus in conjunction with a sink.

Fig. 2 is an enlarged cross section of the apparatus.

The apparatus is shown in Fig. 1 in conjunction with a sink I abovewhich is the usual hot and cold water faucets 2 and 3. The bottom wallof the sink has a circular aperture including an inwardly extendingthreaded flange and the upper surface of the bottom wall 4 of the sink Ihas a threaded aperture to receive an externally threaded outlet fixture5 which has a peripheral flange 6 at its upper end engaging a recessprovided therefor in the upper face of the bottom wall 4 of the sink.The fixture 5 is externally threaded for a portion of its length toengage the threaded face of the flange 1 of the top wall of casingmember 9 and a packing ring 8 is provided between the upper face of thechambered member 9 and the bottom wall 4 of the sink. The body 9 has athreaded inlet ID on one side to receive a vent pipe II. This pipe has avertical portion 12 the open upper end of which terminates preferably atabout the upper surface of the flange of the sink I.

The vent pipe II leads to a waste conduit I1 and in the conduit is awell known separator 24 adapted to prevent grease and other deleteriousmatter from entering the drain line [3 when the flow rating in gallonsper minute does not exceed the flow rating of the separator.

The outlet end M of the fixture 5 extends into the chamber I5 of themember 9 and the lower end of the member 9 is externally threaded and aninternal rib [6 seats on the upper end of the waste conduit H. A flangedcap I8 is threaded on the threaded end of the member 9 and a packingr.ng I9 is positioned between the cap [8 and the threaded end of themember 9 and a removable plug 20 seats on a flange 2| of the outletfixture 5. The plug 28 has a ring 20 to permit ready removal thereof.

The upper end of the vertical portion l2 of the vent pipe is open toatmosphere and terminates at about the level of the upper surface of thesink I. Air is thus drawn into the chamber l5 7 and discharges with theliquid to the waste conduit IT. This arrangement prevents less thanatmospheric pressure in the outlet fixture and chamber leading to thewaste conduit.

It will be observed from the foregoing that liquid in the sink I mayflow through the outlet fixture 5 on removal of the plug 20 and theliquid discharges into the waste conduit ll open to the air by means ofthe vent pipe I2 and any grease or non-liquid matter is retained in theseparator 24.

When the flow of liquid is materially restricted, due to the retainedmaterial in the member 24, the separator may be removed, cleaned andreplaced and secured in position by means of the nuts 22 and 23 onopposite ends of the separator. While not so shown these nuts may beprovided with a packing means between the respective ends of theseparator and the respective nuts. The diameter of the outlet end M offixture 5 determines the gallons of flow of liquid per minute. The airinlet l2 prevents syphonage at the waste outlet orifice.

It is believed obvious from the foregoing description taken inconjunction with the drawing that the various objects of the inventionare attained by the structural character and relationship of parts.

Having thus briefly described my invention, its utility and mode ofoperation, what I claim and desire to secure by Letters Patent of theUnited States is:

l. A waste fiow control for a sink having an outlet comprising an outletfixture secured within said outlet and depending from said sink, achambered member surrounding the depending end of sad fixture andsecured thereto, said member having a lateralinlet opening and an outletopening in its bottom wall, an air vent pipe joined to said member atits inlet opening, a waste conduit with its upper end projecting up intothe outlet opening of said chambered member, the portion of said memberadjacent said outlet being exteriorly threaded, and an interiorlythreaded apertured cap fitted over said waste conduit and threadablyjoined to the exteriorly threaded portion of said chambered member.

2. A waste flow control for a sink having an outlet comprising an outletfixture secured within said outlet and depending from said sink, achambered member surrounding the depending end of said fixture andsecured thereto, said chambered member having a lateral inlet openingand an outlet opening in its bottom wall, said outlet fixture extendingto the bottom of said inlet opening, an air vent pipe joined to saidchambered member at its inlet opening, and a waste conduit projecting upinto the outlet opening of said chambered member and joined at its upperend to said chambered member.

EDWARD W. N. BOOSEY.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date Barry et a1 Feb. 21, 1893 BrownOct. 8, 1901 Lafin Mar. 16, 1926 Schmidt Feb. 9, 1932 Hertsch May 3,1932 Hirshstein June 2, 1942

